How to move header to top of the page


Hi guys, I’m doing intensive pro program called Building Website from Scratch, I’m doing the project in which we need to build a page (this is the link). My problem is whenever I write down HTML file, I always got the space between the header and the top of the page and I already tried several methods such as setting margin-top to 0 for both header and body tags but it doesn’t change anything. Any idea how to remove the gap between header and top of the page?


Did you set the background as it or did you put the image first?